54 S5 Biology students attended a Biology Field Studies Course at Caritas Chan Chun Ha Field Studies Centre in Cheung Chau on 18 April. Students had a close contact with the organisms in the rocky shore of Nam Tam Wan. They identified organisms, observed their features, recorded the physical factors and studied their distribution and adaptations. Students performed laboratory works in the centre to have further investigations in the organisms and water samples collected. They experienced a comprehensive study of the ecology of rocky shore organisms.